Electro-hydraulic servo numerical control bending machine with built-in oil cylinder

Abstract

The utility model discloses an electro-hydraulic servo numerical control bending machine with a built-in oil cylinder, and belongs to the technical field of bending machines. An electro-hydraulic servo numerical control bending machine with built-in oil cylinders comprises a machine frame, the machine frame comprises a workbench, a sliding block is arranged at the top of the machine frame, the oil cylinders are arranged on the two sides of the sliding block and connected with the machine frame through bolts, a hydraulic driving assembly is arranged at one end of each oil cylinder, guide rails are arranged on the two sides of the bottom of the sliding block, and the guide rails are connected with the workbench through bolts. The sliding block is slidably connected with the rack through a sliding rail, and a pressing plate is arranged at the bottom of the sliding block. In order to solve the problems that in the stamping process of an upper die of the bending machine, collision and friction occur between the connecting position of a cutter handle and a pressing plate structure under the influence of impact pressure, the cutter handle and the inner side of a pressing plate deform after a long time, and the follow-up replacement and use precision of the die is affected, a rubber line is installed in a line groove; in this way, the corner area can be protected, and serious abrasion deformation between the chamfering area of the inner pressing block and the upper die is avoided.

Description

Electro-hydraulic servo CNC bending machine with built-in hydraulic cylinder Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically to an electro-hydraulic servo CNC bending machine with a built-in hydraulic cylinder. Background Technology

[0002] A bending machine is used for bending, forming, and cutting sheet metal. It uses power (hydraulic, pneumatic, electric motor, etc.) to power the die holder. A bending die is installed between the die holder and the bending die table, which can bend the sheet metal into the shape we need.

[0003] During the stamping process, the die on the bending machine will collide and rub against the pressure plate structure due to the impact pressure at the tool holder connection. Over time, deformation will occur at the tool holder and the inner side of the pressure plate, affecting the accuracy of subsequent die replacement. Summary of the Invention

[0004] The purpose of this invention is to provide an electro-hydraulic servo CNC bending machine with a built-in hydraulic cylinder. The glue line is installed inside the groove, which can protect the corner area and prevent severe wear and deformation between the chamfered area of ​​the inner pressure block and the upper die, thus solving the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electro-hydraulic servo CNC bending machine with built-in hydraulic cylinders, including a frame, the frame including a worktable, a slider on the top of the frame, hydraulic cylinders on both sides of the slider, the hydraulic cylinders being connected to the frame by bolts, wherein a hydraulic drive component is provided at one end of the hydraulic cylinder, guide rails are provided on both sides of the bottom of the slider, the slider is slidably connected to the frame through the guide rails, and a pressure plate is provided at the bottom of the slider.

[0006] Furthermore, a lower mold is provided above the worktable, and the lower mold is connected to the worktable by bolts.

[0007] Furthermore, the pressure plate includes a composite plate and a snap-fit ​​plate, wherein a scribing pad is provided on one side of the bottom of the composite plate, and an inner pressure block is provided below the scribing pad.

[0008] Furthermore, the buckle plate and the composite plate are connected by bolts, and a locking plate is provided on the outer side of the buckle plate, wherein the locking plate is combined and connected with the buckle plate.

[0009] Furthermore, the bottom of the upper mold is provided with a bending head, the inner side of the bending head is provided with an inner arc opening, and one side of the top of the upper mold is provided with a locking groove, through which the upper mold is connected to the buckle plate.

[0010] Furthermore, a pad groove is provided on the other side of the top of the upper mold, and a wire groove is provided on one side of the pad groove. The wire groove extends through to both ends of the upper mold surface, and a glue line is provided inside the wire groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The stamping area of ​​the upper die structure adopts an inner arc design. Compared with the traditional vertical die structure, the bending head with the arc design can reduce stress concentration and avoid scratches on the material surface. The glue line can be installed inside the groove, which can protect the corner area and prevent serious wear and deformation between the chamfered area of ​​the inner pressure block and the upper die.

[0013] 2. Rotating the locking lever can release the lock between the buckle plate and the upper mold, thereby removing the upper mold. The design of the engraved shim plate is to assist in the replacement, installation, and adjustment of the upper mold. Adjust the upper mold horizontally according to the engraved lines to ensure bending accuracy. Attached Figure Description

[0014] Figure 1 is an overall front view of this utility model;

[0015] Figure 2 is an overall side view of this utility model;

[0016] Figure 3 is a schematic diagram of the pressure plate structure of this utility model;

[0017] Figure 4 is a schematic diagram of the upper mold structure of this utility model.

[0018] In the diagram: 1. Frame; 2. Workbench; 3. Slider; 4. Pressure plate; 5. Upper die; 201. Lower die; 301. Hydraulic cylinder; 302. Guide rail; 3011. Hydraulic drive assembly; 401. Engraving pad; 402. Composite plate; 403. Inner pressure block; 404. Buckle plate; 4041. Locking plate; 501. Locking groove; 502. Inner arc opening; 503. Bending head; 504. Pad groove; 505. Wire groove; 5051. Glue line. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] To address the issue that during the stamping process of a bending machine, the impact pressure at the tool holder connection point causes collision and friction with the pressure plate structure, leading to deformation of the tool holder and the inner side of the pressure plate over time, thus affecting the accuracy of subsequent tool replacements; please refer to Figures 1-4, this utility model provides the following solution:

[0021] Referring to Figures 1-2, the electro-hydraulic servo CNC bending machine with built-in hydraulic cylinders includes a frame 1, a worktable 2, a slider 3 on the top of the frame 1, hydraulic cylinders 301 on both sides of the slider 3, the hydraulic cylinders 301 being bolted to the frame 1, a hydraulic drive assembly 3011 on one end of the hydraulic cylinder 301, guide rails 302 on both sides of the bottom of the slider 3, the slider 3 being slidably connected to the frame 1 via the guide rails, a pressure plate 4 on the bottom of the slider 3, and a lower die 201 on the top of the worktable 2, the lower die 201 being bolted to the worktable 2.

[0022] In this embodiment, the oil cylinder 301 can drive the slider 3 to rise and fall through the hydraulic drive component 3011, thereby driving the upper die 5 structure at the bottom to perform a stamping operation on the workpiece.

[0023] Referring to Figure 3, the pressure plate 4 includes a composite plate 402 and a snap plate 404. A scribe line pad 401 is provided on one side of the bottom of the composite plate 402, and an inner pressure block 403 is provided below the scribe line pad 401. The snap plate 404 is connected to the composite plate 402 by bolts, and a locking plate 4041 is provided on the outer side of the snap plate 404. The locking plate 4041 is combined and connected with the snap plate 404.

[0024] In this embodiment, rotating the locking lever 4041 can release the lock between the buckle plate 404 and the upper mold 5, thereby removing the upper mold 5. The design of the engraving pad 401 is to assist the upper mold 5 in replacement, installation and debugging operations. The upper mold 5 is adjusted horizontally according to the engraving lines to ensure bending accuracy.

[0025] Referring to Figure 4, the bottom of the upper mold 5 is provided with a bending head 503, and the inner side of the bending head 503 is provided with an inner arc opening 502. One side of the top of the upper mold 5 is provided with a locking groove 501, and the upper mold 5 is connected to the buckle plate 404 through the locking groove 501. The other side of the top of the upper mold 5 is provided with a pad groove 504, and the pad groove 504 and the inner pressure block 403 are fitted together. One side of the pad groove 504 is provided with a wire groove 505, which extends through to both ends of the upper mold 5. The inside of the wire groove 505 is provided with a glue line 5051.

[0026] In this embodiment, the inner arc opening 502 is designed inside the stamping area of ​​the upper die 5 structure. Compared with the traditional vertical die structure, the bending head 503 with the arc design can reduce stress concentration and avoid scratches on the material surface. The glue line 5051 can be installed inside the groove 505, which can protect the corner area and prevent serious wear and deformation between the chamfered area of ​​the inner pressure block 403 and the upper die 5.

[0027] It should be noted that the through-type cable trays provide wiring paths, which may serve sensor cables, coolant pipes or pneumatic lines, keeping the exterior of the mold clean.

[0028] The working principle is as follows: the workpiece is placed above the lower die 201, and then the oil cylinder 301 drives the slider 3 to rise and fall through the hydraulic drive component 3011, thereby driving the upper die 5 structure at the bottom to perform a stamping operation on the workpiece. The stamping area of ​​the upper die 5 structure adopts an inner arc opening 502 design. Compared with the traditional vertical die structure, the bending head 503 with the arc design can reduce stress concentration and avoid scratches on the material surface. The glue line 5051 can be installed inside the line groove 505, which can protect the corner area and prevent serious wear and deformation between the chamfered area of ​​the inner pressure block 403 and the upper die 5.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electro-hydraulic servo CNC bending machine with a built-in hydraulic cylinder, characterized in that, The machine includes a frame (1), which includes a workbench (2). A slider (3) is provided on the top of the frame (1). A hydraulic cylinder (301) is provided on both sides of the slider (3). The hydraulic cylinder (301) is connected to the frame (1) by bolts. A hydraulic drive assembly (3011) is provided at one end of the hydraulic cylinder (301). Guide rails (302) are provided on both sides of the bottom of the slider (3). The slider (3) is slidably connected to the frame (1) through the guide rails. A pressure plate (4) is provided at the bottom of the slider (3).

2. The electro-hydraulic servo CNC bending machine with built-in hydraulic cylinder as described in claim 1, characterized in that: A lower mold (201) is provided above the workbench (2), and the lower mold (201) is connected to the workbench (2) by bolts.

3. The electro-hydraulic servo CNC bending machine with built-in hydraulic cylinder as described in claim 1, characterized in that: The pressure plate (4) includes a composite plate (402) and a snap plate (404), wherein a scribing pad (401) is provided on one side of the bottom of the composite plate (402), and an inner pressure block (403) is provided below the scribing pad (401).

4. The electro-hydraulic servo CNC bending machine with built-in hydraulic cylinder as described in claim 3, characterized in that: The buckle plate (404) and the mating plate (402) are connected by bolts. A locking plate (4041) is provided on the outside of the buckle plate (404). The locking plate (4041) is connected to the buckle plate (404). Rotating the locking plate (4041) releases the locking between the buckle plate (404) and the upper mold (5).

5. The electro-hydraulic servo CNC bending machine with built-in hydraulic cylinder according to claim 4, characterized in that: The bottom of the upper mold (5) is provided with a bending head (503), the inner side of the bending head (503) is provided with an inner arc opening (502), and a locking groove (501) is provided on one side of the top of the upper mold (5). The upper mold (5) is connected to the buckle plate (404) through the locking groove (501).

6. The electro-hydraulic servo CNC bending machine with built-in hydraulic cylinder as described in claim 5, characterized in that: A pad groove (504) is provided on the other side of the top of the upper mold (5), and a wire groove (505) is provided on one side of the pad groove (504). The wire groove (505) extends through to both ends of the upper mold (5), and a glue line (5051) is provided inside the wire groove (505).

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